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MySQL的LAST_INSERT_ID用法举例 环境：MySQL Sever 5.1 + MySQL命令行工具首先看个例子(主键是自增长)： [sql] mysql> insert into bankaccount(name,balance) values('123', 1000); Query OK, 1 row affected (0.06 sec) mysql> insert into bankstatement(action, txdate, amt, toaccno, fromaccno) values ('122', curdate(), 1000, 1, 2); Query OK, 1 row affected (0.00 sec) mysql> select last_insert_id(); +------------------+ | last_insert_id() | +------------------+ | 7 | +------------------+ 1 row in set (0.00 sec) mysql> select * from bankaccount; +-------+------+---------+ | accno | name | balance | +-------+------+---------+ | 1 | 张三 | 200 | | 2 | 李四 | 900 | | 3 | 123 | 1000 | | 4 | 123 | 1000 | +-------+------+---------+ 4 rows in set (0.00 sec) mysql> select * from bankstatement; +----+--------------+------------+------+---------+-----------+ | id | action | txdate | amt | toaccno | fromaccno | +----+--------------+------------+------+---------+-----------+ | 1 | 开户 | 2012-10-14 | 100 | NULL | 1 | | 2 | 开户 | 2012-10-14 | 1000 | NULL | 2 | | 3 | 查找账户信息 | 2012-10-14 | 0 | NULL | 2 | | 4 | 查找账户信息 | 2012-10-14 | 0 | NULL | 1 | | 5 | 转账 | 2012-10-14 | 100 | 1 | 2 | | 6 | 122 | 2012-10-14 | 1000 | 1 | 2 | | 7 | 122 | 2012-10-14 | 1000 | 1 | 2 | +----+--------------+------------+------+---------+-----------+ 7 rows in set (0.00 sec) 总结：LAST_INSERT_ID()返回最后一个INSERT或UPDATE语句中AUTO_INCREMENT列的值。
参考资料：
MySQL的LAST_INSERT_ID用法http:///database/201208/151747.html；mysql中的LAST_INSERT_ID()分析http:///database/201206/137028.htmlMysql函数:Last_insert_id()语法讲解http:///database/201210/160986.html bitsCN.com
